As a quarterback in the NFL, Mark Rypien knew well that he put himself at risk of serious injury every time he stepped on the field. He’d seen players suffer broken bones, muscle tears and sprains.

[url=http://www.washingtonpost.com/sports/redskins/rypien-grappling-with-memory-loss-and-other-head-injury-symptoms-wants-to-make-the-nfl-safer/2012/03/29/gIQAnJOvjS_story.html]Former Redksins QB Mark Rypien, grappling with memory loss and other head injury symptoms, wants to make the NFL safer - The Washington Post[/url]